Relationship between cerebral oxygenation, cardiac output, and blood pressure during transitional period in extremely low gestational age neonates.

Objective: To describe the relationship between cerebral oxygenation, cardiac output, arterial blood pressure (BP), and cerebral blood flow velocity in extremely low gestational age neonates (ELGANs) during transition.

Methods: This study comprises secondary analyses from a prospective observational study conducted at a tertiary Neonatal Intensive Care Unit. Recruited ELGANs underwent cerebral saturation (CrSO) monitoring and serial echocardiography during 72 h from birth.